METRIC SYSTEM

 LENGTH 1 meter (m) = 10 decimeters (dm) 100 centimeters (cm) 1,000 millimeters (mm) 1 dekameter (dkm) = 10 meters (m) 1 hectometer = 100 meters (m) 1 kilometer = 1,000 meters (m) WEIGHT 1 gram (g) = 10 decigrams (dg) 100 centigrams (cg) 1,000 milligrams (mg) 1 dekagram (dkg) = 10 grams (g) 1 hectogram (hg) = 100 grams (g) 1 kilogram (kg) = 1,000 grams (g) 1 meter ton = 1,000 kilograms (kg) 1,000,000 grams (g) VOLUME & CAPACITY 1 liter (l) = 1 cubic dicimeter (dm3) 10 deciliters (dl) 100 centiliters (cl) 1,000 cubic centimeters (cm3 or cc) 1 dekaliter (dkl) = 10 liters (l) 1 hectoliter (hl) = 100 liters (l) 1 kiloliter (kl) = 1 cubic meter (m3) 1 stere (s) 1,000 liters (l) AREA 1 centare (ca) = 1 square meter (m2) 100 square decimeters (dm2) 10,000 square centimeters (cm2) 1,000,000 square millimeters (mm2) 1 are (a) = 1 square dekameter (dkm2) 100 square meters (m2) 1 hectare (ha) = 100 ares (a) 10,000 square meters (m2) 1 square kilometer (km2) = 1,000,000 square meters (m2)

Other prefixes occasionally used:

 micro - one millionth myria - 10,000 times deca - 10 times (same as deka) mega - 1,000,000 times